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<H1 class="no-header">form_field_new 3x</H1>
<PRE>
<STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>                                          <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>




</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>new_field</STRONG>,  <STRONG>dup_field</STRONG>, <STRONG>link_field</STRONG>, <STRONG>free_field</STRONG> - create and destroy form
       fields


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>

       <STRONG>FIELD</STRONG> <STRONG>*new_field(int</STRONG> <EM>height</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>width</EM><STRONG>,</STRONG>
                        <STRONG>int</STRONG> <EM>toprow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>leftcol</EM><STRONG>,</STRONG>
                        <STRONG>int</STRONG> <EM>offscreen</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>nbuffers</EM><STRONG>);</STRONG>
       <STRONG>FIELD</STRONG> <STRONG>*dup_field(FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>toprow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>leftcol</EM><STRONG>);</STRONG>
       <STRONG>FIELD</STRONG> <STRONG>*link_field(FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>toprow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>leftcol</EM><STRONG>);</STRONG>
       <STRONG>int</STRONG> <STRONG>free_field(FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>);</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       The function <STRONG>new_field</STRONG> allocates a new field and  initializes  it  from
       the  parameters  given: height, width, row of upper-left corner, column
       of upper-left corner, number off-screen rows, and number of  additional
       working buffers.

       The  function  <STRONG>dup_field</STRONG>  duplicates  a  field at a new location.  Most
       attributes (including current contents, size, validation  type,  buffer
       count,  growth  threshold,  justification,  foreground, background, pad
       character, options, and user pointer) are copied.  Field status and the
       field page bit are not copied.

       The  function  <STRONG>link_field</STRONG> acts like <STRONG>dup_field</STRONG>, but the new field shares
       buffers with its parent.  Attribute data is separate.

       The function <STRONG>free_field</STRONG> de-allocates storage associated with a field.


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       The functions <STRONG>new_field</STRONG>, <STRONG>dup_field</STRONG>, <STRONG>link_field</STRONG> return  <STRONG>NULL</STRONG>  on  error.
       They set <STRONG>errno</STRONG> according to their success:

       <STRONG>E_OK</STRONG> The routine succeeded.

       <STRONG>E_BAD_ARGUMENT</STRONG>
            Routine detected an incorrect or out-of-range argument.

       <STRONG>E_SYSTEM_ERROR</STRONG>
            System error occurred, e.g., malloc failure.

       The function <STRONG>free_field</STRONG> returns one of the following:

       <STRONG>E_OK</STRONG> The routine succeeded.

       <STRONG>E_BAD_ARGUMENT</STRONG>
            Routine detected an incorrect or out-of-range argument.

       <STRONG>E_CONNECTED</STRONG>
            field is connected.


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.


</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
       The  header  file  <STRONG>&lt;form.h&gt;</STRONG>  automatically  includes  the  header  file
       <STRONG>&lt;curses.h&gt;</STRONG>.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       These routines emulate the System  V  forms  library.   They  were  not
       supported on Version 7 or BSD versions.

       It  may be unwise to count on the set of attributes copied by <STRONG>dup_field</STRONG>
       being portable; the System V  forms  library  documents  are  not  very
       explicit about what gets copied and what does not.


</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
       Raymond.



                                                            <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
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<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-AUTHORS">AUTHORS</a></li>
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